Please follow the following instruction carefully You may use your pencils and a

Question

Please follow the following instruction carefully You may use your pencils and all exam materials provided (including the periodic chart). You may not use any additional material. The exam consists of two parts: Part A has multiple choice questions 1-3' Questions 1-30 are each and questions 31-35 are each. D all computations on the test paper only. Part B is comprehensive type and consists of 5questions (36-40) worth each. Show detailed approach the enclosed space and partial credit will be given for these questions. Regulations on Academic Honesty will be strictly enforced during the exam. GOODLUCK! Part A - Multiple Choice Questions Calculate moles of solute needed to prepare 115 mL of a 2.0 M MgCl2 solution. 0.23 moles 230 moles No correct answer Identify the compound in each group that is most soluble in water Pentane.1-butanol,1-hexanol pentane 1-butanol 1-hexanol None of the given compounds are soluble in water Indicate whether the following statement is characteristic of an acid or a base Produces OH- in water acid base neither acid nor base Select the correct IUPAC name for the following compound. 4-methyl-2-butanol b 4-methyl-4-butanol c2-methy1-2-butanol

Explanation / Answer

16) HSO4- hydrogen sufate ion

17) b

18) b ( hydration means addition of H2O)

19) a

20) a

21) b

22) c

23) a

24)a ( non-polar soluble in non-polar solvent)

25) a

26) b

27) b

28) a

29) c

30) a

31) a

32) not clearly visible

33)a

34) b

35) c

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